Directional Modulation Technique for Linear Sparse Arrays
As millimeter-wave technology becomes more and more mature, directional modulation (DM) based on large uniform linear arrays, where the adjacent antennas spaced half-wavelength of the frequency of interest, can be realized to ensure the security of millimeter-wave systems. However, for small inter-e...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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IEEE
2019-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/8620992/ |
| _version_ | 1818874853731598336 |
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| author | Feng Liu Ling Wang Jian Xie |
| author_facet | Feng Liu Ling Wang Jian Xie |
| author_sort | Feng Liu |
| collection | DOAJ |
| description | As millimeter-wave technology becomes more and more mature, directional modulation (DM) based on large uniform linear arrays, where the adjacent antennas spaced half-wavelength of the frequency of interest, can be realized to ensure the security of millimeter-wave systems. However, for small inter-element spacings, the mutual coupling effects are severe. Therefore, a DM technique using linear sparse arrays (LSAs) is presented to improve spatial resolution and mitigate the effects of mutual coupling. The main idea for DM signal synthesis is to modulate the radiation pattern at the symbol rate by randomly selecting a sparse rate, i.e., a filling fraction, from the given interval [α<sub>min</sub>, α<sub>max</sub>] and an array formation, i.e., an antenna subset, from the codebook P. This results in a directional radiation pattern that projects a standard constellation in the desired direction and distorted randomized constellations in other directions, which offers security for wireless communication. Numerical comparisons of the symbol error rate performance of the proposed DM technique against conventional array transmission and antenna subset modulation are presented to highlight the advantages of the DM technique for LSAs. |
| first_indexed | 2024-12-19T13:17:12Z |
| format | Article |
| id | doaj.art-ad862b3583a44dfe8d98b391eeec6dfe |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-19T13:17:12Z |
| publishDate | 2019-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-ad862b3583a44dfe8d98b391eeec6dfe2022-12-21T20:19:48ZengIEEEIEEE Access2169-35362019-01-017132301324010.1109/ACCESS.2019.28942198620992Directional Modulation Technique for Linear Sparse ArraysFeng Liu0https://orcid.org/0000-0001-6006-7918Ling Wang1Jian Xie2https://orcid.org/0000-0001-9654-064XSchool of Electronics and Information, Northwestern Polytechnical University, Xi’an, ChinaSchool of Electronics and Information, Northwestern Polytechnical University, Xi’an, ChinaSchool of Electronics and Information, Northwestern Polytechnical University, Xi’an, ChinaAs millimeter-wave technology becomes more and more mature, directional modulation (DM) based on large uniform linear arrays, where the adjacent antennas spaced half-wavelength of the frequency of interest, can be realized to ensure the security of millimeter-wave systems. However, for small inter-element spacings, the mutual coupling effects are severe. Therefore, a DM technique using linear sparse arrays (LSAs) is presented to improve spatial resolution and mitigate the effects of mutual coupling. The main idea for DM signal synthesis is to modulate the radiation pattern at the symbol rate by randomly selecting a sparse rate, i.e., a filling fraction, from the given interval [α<sub>min</sub>, α<sub>max</sub>] and an array formation, i.e., an antenna subset, from the codebook P. This results in a directional radiation pattern that projects a standard constellation in the desired direction and distorted randomized constellations in other directions, which offers security for wireless communication. Numerical comparisons of the symbol error rate performance of the proposed DM technique against conventional array transmission and antenna subset modulation are presented to highlight the advantages of the DM technique for LSAs.https://ieeexplore.ieee.org/document/8620992/Directional modulation (DM)linear sparse array (LSA)sparse rate (SR)array formation (AF)symbol error rate (SER) |
| spellingShingle | Feng Liu Ling Wang Jian Xie Directional Modulation Technique for Linear Sparse Arrays IEEE Access Directional modulation (DM) linear sparse array (LSA) sparse rate (SR) array formation (AF) symbol error rate (SER) |
| title | Directional Modulation Technique for Linear Sparse Arrays |
| title_full | Directional Modulation Technique for Linear Sparse Arrays |
| title_fullStr | Directional Modulation Technique for Linear Sparse Arrays |
| title_full_unstemmed | Directional Modulation Technique for Linear Sparse Arrays |
| title_short | Directional Modulation Technique for Linear Sparse Arrays |
| title_sort | directional modulation technique for linear sparse arrays |
| topic | Directional modulation (DM) linear sparse array (LSA) sparse rate (SR) array formation (AF) symbol error rate (SER) |
| url | https://ieeexplore.ieee.org/document/8620992/ |
| work_keys_str_mv | AT fengliu directionalmodulationtechniqueforlinearsparsearrays AT lingwang directionalmodulationtechniqueforlinearsparsearrays AT jianxie directionalmodulationtechniqueforlinearsparsearrays |